US EPA

1135453 

Journal Article 

Viscosities of Binary and Ternary Mixtures of Water, Alcohol, Acetone, and Hexane 

Song, SX; Peng, CS 

2008 

Yes 

Journal of Dispersion Science and Technology
ISSN: 0193-2691
EISSN: 1532-2351 

TAYLOR & FRANCIS INC 

PHILADELPHIA 

29 

10 

1367-1372 

English 

10.1080/01932690802313006 

WOS:000260262700002 

This articles studied and determined the viscosities of the binary mixtures of water-methanol, water-ethanol, water-propanol, water-acetone, acetone-ethanol, methanol-ethanol, and acetone-hexane and the ternary mixtures of water-methanol-ethanol and water-ethanol-acetone at 20°C. It is shown that the mixing of water with the alcohols and acetone resulted in a positive deviation of viscosity, which reached the maximum value at the water mole fraction x1 ∼0.7 for water-methanol, x1 ∼0.72 for water-ethanol, x1 ∼0.74 for water-propanol, and x1 ∼0.83 for water-acetone binary mixture. This viscosity deviation can be mainly attributed to the formation of micelles of alcohol or acetone molecules in water because of the hydrophobic attraction between the hydrocarbon chains. The micelle surfaces are surrounded by hydration layers, leading to the positive viscosity deviation in the liquid mixtures because the water in hydration layers has a much higher viscosity than bulk water. Also, the contrary observation was found in the binary mixtures of acetone-ethanol and acetone-hexane, having a negative viscosity deviation. 

Hydration layers; hydrophobic interaction; liquid mixture; viscosity